code: def testMulti(self):
      result = Median()([5, 8, 4, 9, 1])
      self.assertEqual(result, 5)
  
file_path: essentia/test/src/unittests/stats/test_median.py
imports: from essentia_test import *
label_desc: Use image node_id 4 for calling the TestMedian obj's underlying member method code with example usage: obj.testMulti() without return types